Index: .gitattributes
==================================================================
--- .gitattributes
+++ .gitattributes
@@ -3,5 +3,8 @@
 # DOS Executables
 dos/* linguist-vendored
 # "Reduce" and "Standard Lisp" unavailable.
 *.sl linguist-vendored
 *.red linguist-vendored
+# Exclude TeX to avoid misclassification.
+*.tex linguist-vendored
+doc/*.tex linguist-vendored